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( L) 4Sheets-Sheet 1. C. BARBEZAT-BAILLOT REPEATING WATCH.

No. 433,225. I Patented July 29. 1890.

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0. BARBEZAT-BAILLOT RBPEATING WATCH.

No. 433,225. Patented July 29, 1890.

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(No Model.) 4 Sheet-Sheet 3.

G. BARBEZAT-BAILLOT REPBATING WATCH.

Patented July 29, 1890.

(No Model.) 4 Sheets-Sheet 4.

G. BARBEZAT-BAILLOT REPEATING WATCH.

No. 433,225. Patented July 29, 1890.

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CHARLES BARBEZAT-BAILLOT, OF LOCLE, SWVITZERLAND.

REPEATlNGt-WATCH.

SPECIFICATION forming part of Letters Patent No. 433,225, dated July 29,1890.

. Application filed May 9, 1889.- Serial No.310,114. (No model.)Patented in Switzerland January 8, 1889, N0. 334.

To all whom it may concern:

Be it known that I, CHARLES BARBEZAT- BAILLOT, a citizen of Switzerland,residing at Locle, in Switzerland, have invented a new and usefulImprovement in Repeatingatches, (patented to me in Switzerland January8, 1889, No. 334,) of which the following is a specification.

Myinventionrelates to the mechanism made use of with the strikingdevices in a repeating-watch, whereby the hours are first struck andthen the quarter-hours and then the five minutes are indicated; and Iuse a centrifugal regulator that is noiseless to regulate the speed ofthe striking mechanism.

In the accompanying drawings, Figure 1 is a plan view, on an enlargedscale, of the re peating mechanism as it is seen when the dial has beenremoved. In this figure the mechanism is at rest. Fig. 2 is a plan view,and Fig. 3 a cross-section, of the regulator on twice the scale ofFig. 1. Figs. 4 and 5 are detached views of parts of the mechanism; andFig. 6 is a diagrammatic plan view of the gearing for operating thecentrifugal regulator and the striking mechanism, the plates and bridgesnot being shown.

A is the axis, to which is affixed one end of the mainspring of therepeating-Work. Said spring is placed in an ordinary barrel in a recessof the plate below the spring barrel bridge- The action of themainspring is transmitted to a toothed segment 13, to partially rotateupon the axis A, there being a ratchet-wheel C fixed to the axis A and aclick D on the toothed segment 13. This click allows the tension of thespring to be adjusted as desired. The segment Bhas an arm 1) projectingthrough the watch-case, so as to be moved by hand against the action ofthe spring when the striking or soundlngmechanism is brought intoaction. The said arm I) may be replacedby a rack E, gearing with atoothed part of the segment B, in order to have the latter acted upon bymeans of a pusher, as shown by dotted lines in Fig. 1.

The teeth of the segment 13 engage with those of a rack F, which turnsfreely upon an axis G, which axis also carries the third rack H, uponwhich is a double-armed spring h, that connects the two racks H and Fwith one another, but in such a manner that the rack F is free to bemoved under the action of the segment B when the arm I) is moved; butthe rack H can remain stationary as the spring h is bent. The rack H atone end has a projection If, adapted to engage the hour-snail 'v, ashereinafter described. The unlocking-lever I is also pivoted on the axisG and acted on in one direction by the spring 71, and there is a pin fon the rack-lever F, that acts on the unlocking-lever I to move the sameas the striking mechanism is started.

The rack II acts upon a pinion J, which is fixed upon an axis K, whichaxis also carries a segment L, having twelve click-teeth which act uponthe tooth of the hour-strikerN, and there is also a pin Z on the segmentL to act upon the toothed segment M, the teeth of which gear into teethon the lever O to move the lever 0 against the action of' a spring 0.

The toothed lever O is pivoted at W and provided with click-teeth m,that act upon the quarter-strikers P, and with other clickteeth a, thatact upon the minutes-strikers Q. The hour-striker N is on the same arboras the quarter-striker P, but beneath it and on the same plane as thesegment L. A toothed rack S is also pivoted at W, and acts to determinethe number of teeth that act upon the five-minute striker Q. A click 0,pivoted upon the toothed lever O, is provided with a spring, (shown bydotted lines in Fig. 4,) which moves the engaging end of the click tothe teeth of the rack S. The other end of the click 0 is beveled andcomes against the pillar X to lift the engaging end away from the teethof the rack S when the reverse end of the toothed lever O swings towardthe snail T. The click 0 engages the teeth of the rack S at a placewhich is determined by the positions of the reverse end of such rack Sand the snail U.

The lever B, having a spring 7', acts as a locking device for holdingthe striking mechanism until the above -mentioned lever I causes theunlocking of said mechanism.

When the arm bis acted upon to bring into action the sounding mechanism,the toothed segments L and toothed lever 0 have a tendency to move inopposite directions to the arrows upon the drawings, Fig. l; but theyare stopped by the teeth of the strikers P and Q, the latter not beingfree to oscillate because the pins 19 and qrest against thelocking-lever B when the latter is in the position shown in thedrawings-that is to say, when the tooth R bears upon the extremity I ofthe lever I. hen the pin f of the rack-lever F strikes against the leverI, the latter is moved so as to allow the tooth R to escape from I ofthe lever I. The locking-lever R is then easily repulsed by the pins 2and q, and then there is no obstacle either to the movements of thelever O and toothed rack S toward the quarters and minutes snails T andU or to the backward motion of the toothed segment L, the extent ofwhich is determined by the hour-snailV through the intervention of thepinion J, rack H, and the rack end 25, which parts move backsimultaneously with the segment L. As soon as the arm I) has been fullymoved and abandoned to itself, all the parts are moved by the action ofthe mainspring in the direction indicated by the arrows in the drawingsuntil they reach a position of rest, such as that shown in the drawings,and in so doing the time is indicated by the number of strokes by thehour, quarter-hour, and five-minute strikers. The operation of thestriking mechanism in this movement is as follows, according to therelative position of the time mechanism, which determines the hour,quarter, and minutes to be struck: The teeth of the segment L engage thetoot-h of the striker N, (see Fig. 6,) and the striker N has a toothacting upon the pin 11 upon the hammer N, which hammer swings upon thesame arbor 12 as the strikers P and N. This movement actuates thestriker N and the hammer N, and as the teeth of thesegment L pass theyeach actuate the tooth of the striker N to draw back the hammer Nagainst the spring 8, which spring, as the tooth of the striker jumpsfrom tooth to tooth of the segment L, throws the hammer N with forceagainst one are bar of the circular resonator L to sound the hours. Thespring 10 stops the hammer from going too far and gives it the necessaryreturn movement. These springs 8 and 10 hold the hammer in a state ofrest when the repeating mechanism is not in operation. In theprogressive movement of the parts the first teeth of the toothed lever Oengage the tooth of the quarter-striker P, which in turn moves the pin11 and draws back the 11ammer N, and the springs-8 and 10 operate, asheretofore described, to cause the hammerN' to strike the quarter-hours.In the further progressive movement of the parts the smaller teeth ofthe toothed lever O engage the tooth of the minute'striker Q, whichstriker in turn engages the pin 13 of the hammer Q to draw back saidhammer, and as the tooth of the minute-strikerQ jumps from tooth totooth of the lever O as said lever moves past, the spring 14 throws thehammer Q with force against one are bar of the resonator L to sound theminutes, and the spring 15 checks the movement of said hammer andimparts to it the necessary return movement. resonator L is composed oftwo circular arc bars of different lengths, producing diiferent toneswhen struck, respectively, by the 11ammers N and Q.

On the unlocking-lever I, I aftix an arm Z,

the end of which is hooked, and when the mechanism is at rest the pin zof the rack S prevents the end of the rack S moving toward its snailuntil the unlocking-lever I has been moved; but as soon as the pin fmoves the unlocking-lever I and its arm Z the pin 2 and rack S arereleased and moved by the spring 3, and the tooth R is released from theend I, and the locking-lever R is free to be moved,

and the pins 19 q are also simultaneously released.

In place of the escapement usually employed in repeating mechanisms,which produces a disagreeable noise, I provide a centrifugal regulator,(shown in Figs. 2 and 3,)

and locate the same over the time-movement that is to say, 011 theopposite side of the plan view shown in Fig. 1. The mechanism foroperating this centrifugal regulator is as follows, (see Fig. 6:)Beneath the toothed seg- 5 ment L is a click or ratchet wheel 20 and atoothed wheel 21, pinned together and loosely surrounding the axis orarbor K of the toothed segment L. A pawl 22 upon the under side of thetoothed segment L engages the teeth of I00 the ratchet-wheel 20, and aspring 23 keeps the pawl in place. The movement of the toothed segmentin one direction operates the wheels 20 and 21, and in the otherdirection the pawl runs over the ratchet-wheel 20. The IO 5 over arecess of the bridge B, in which the n 5 regulator is placed. The latteris composed of four arms D D D D affixed to the axis A. The arms D and Dcarry two levers E, with pivots e and terminal weights E The arms D andD are double, like two forks,

into which are received the levers E. There are two springs f, the endsof which are affixed, respectively, to the arms D and to the arms D andtheir other ends press upon the levers E so as to draw the weights Etoward :2 5

the axis A. The heels of the levers are formed so as to freely rotate inthe recess of the bridge B as long as the levers E remain in theposition shown by full lines in the drawings; but when the centrifugalforce throws the levers outward-for instance, into the position shown bydotted lines in the drawinsthe heels 6 of the arms E bear upon the innerface of the recess B, so as to pro The 70 The I r o dnce a friction,which increases in proportion of the increasing speed of the axis K..Said friction abates the velocity of the said axis K, and when the speedof the latter is again normal the springs f throw the levers E intotheir normal positions, in which their heels 6 do not rub against theinner face of B.

The described regulator works without producing any noise Whatever andWith great precision.

I claim as my invention- 1. The combinatiomwith the ratchet-wheel 0,click D, and toothed segment B, of the unlocking-lever I, rack 11,pivoted at G, and the spring it upon the rack H and acting between therack-lever F and the rack 11, the repeating mechanism made ready foraction by the rack H, and the rocking lever B for holding the repeatingmechanism, and the pin f upon the rack-lever F, for bringing into actionthe repeating mechanism, substantially as set forth.

2. The combination, with the snails T U V and the striking mechanism, ofthe toothed lever O and toothed rack S, pivoted at V, 25 the lever 0having teeth to act on the striking mechanism, the pawl o'upon the leverO, engaging the teeth on the rack S, the toothed segment M, engaging theteethon the toothed lever O, the pinion J, and rack H, for giving 30motion to the respective parts, and the unlocking-lever I andlocking-lever R, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of 3 5 two subscribing Witnesses;

CHARLES BARBEZAT-BAILLOT.

Witnesses:

HENRI GRANDJEAN, P. A. PERRENOUD.

